Diyama yubukorikori imwe ya kirisiti yakozwe buhoro buhoro nyuma ya 1950.Ihinduranya uhereye kuri grafite nkibikoresho fatizo, byongewemo na catalizator, kandi bigaterwa nubushyuhe bwo hejuru hamwe numuvuduko ukabije.Diyama yubukorikori ya polycrystalline (PCD) nigikoresho cya polycristaline cyakozwe na polymerisation yifu ya diyama ukoresheje ibyuma bifata ibyuma nka Co, Ni, nibindi. metallurgie muburyo bwo gukora.
Mugihe cyo gucumura, kubera kongeramo inyongeramusaruro, ikiraro gihuza kigizwe ahanini na Co, Mo, W, WC, na Ni gishyirwaho hagati ya kristu ya PCD, kandi diyama yashizwemo muburyo bukomeye bwakozwe nikiraro gihuza.Igikorwa cyo guhuza ibyuma ni ugufata diyama neza kandi ugakoresha neza uburyo bwo kuyikata.Byongeye kandi, kubera gukwirakwiza ibinyampeke ku buntu mu byerekezo bitandukanye, biragoye ko ibice bikwirakwira biva mu ngano bijya mu bundi, ibyo bikaba byongera cyane imbaraga n’ubukomere bya PCD。
Muri iki kibazo, tuzavuga muri make muri make bimwe mubirangaOngeramo PCD.
1. Ubukomere bukabije cyane no kwihanganira kwambara: ntagereranywa muri kamere, ibikoresho bifite ubukana bugera kuri 10000HV, kandi imyambarire yabo irikubye inshuro ijana iyinjizwamo Carbide;
2. Ubukomere, kwambara birwanya, microstrength, ingorane zo gusya, hamwe na coefficient de friction hagati ya anisotropic imwe ya kirisiti ya diyama ya kirisiti hamwe nibikoresho byakazi biratandukanye cyane mundege zitandukanye.Kubwibyo, mugihe cyo gushushanya no gukora ibikoresho bya diyama imwe ya kirisiti, birakenewe guhitamo neza icyerekezo cya kirisiti, kandi icyerekezo cya kirisiti kigomba gukorwa kubikoresho bya diyama.Guhitamo imbere ninyuma yo gukata hejuru yibikoresho byo gukata PCD nikibazo cyingenzi mugushushanya ibikoresho bya kirisiti ya PCD imwe;
3. Coefficient de fraisement nkeya: Kwinjiza diyama bifite coefficient yo hasi yo guterana mugihe utunganya ibikoresho bimwe na bimwe bidafite fer ugereranije nibindi byinjizwamo, bingana na kimwe cya kabiri cya karbide, mubisanzwe hafi 0.2.
4. Gukata PCD birakaze cyane, kandi radiyo itagaragara yo gukata irashobora kugera kuri 0.1-0.5um.Kandi ibikoresho bisanzwe bya kristu ya diyama irashobora gukoreshwa murwego rwa 0.002-0.005um.Kubwibyo, ibikoresho bya diyama bisanzwe birashobora gukora ultra-thin gukata no gutunganya ultra-precision.
5. Coefficient yo kwagura amashyuza ya diyama hamwe na coefficient yo hasi yo kwagura ubushyuhe ni nto ugereranije na karbide ya sima, hafi 1/10 cyibyuma byihuta.Kubwibyo, ibikoresho byo gukata diyama ntabwo bitanga ihinduka rikomeye ryumuriro, bivuze ko ihinduka ryubunini bwibikoresho ryatewe no guca ubushyuhe ari rito, rikaba ari ingenzi cyane cyane kubushakashatsi bwuzuye na ultra precision hamwe nibisabwa byuzuye.
Gukoresha ibikoresho byo gukata diyama
Ongeramo PCDikoreshwa cyane mugukata byihuse / kurambirana / gusya ibyuma bidafite fer hamwe nibikoresho bidafite ferrous, bikwiriye gutunganywa ibikoresho bitandukanye birwanya kwambara bidafite ibyuma nka fibre yikirahure nibikoresho bya ceramic;Ibyuma bitandukanye bidafite ferrous: aluminium, titanium, silicon, magnesium, nibindi, hamwe nuburyo butandukanye bwo kurangiza ibyuma bitagira fer;
Ibibi: umutekano muke.Nubwo ari igikoresho cyo gukata hamwe nuburemere bukabije, imiterere yacyo iri munsi ya 700 ℃.Iyo ubushyuhe bwo kugabanya burenze 700 ℃, buzatakaza umwimerere wa ultra-high.Niyo mpamvu ibikoresho bya diyama bidakwiriye gutunganya ibyuma bya ferrous.Kubera imiti idahwitse ya diyama, ibintu bya karubone muri diyama bizahuza na atome yicyuma mubushyuhe bwinshi, kandi bizahindurwa muburyo bwa grafite, byongera cyane kwangiza ibikoresho.
Igihe cyoherejwe: Gicurasi-17-2023